Dumping-car



.(No Model.)

A.'PARK.

D'UMPING GAR. No. 251,931. Patented Ja.11.3,1882.

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t i UNITED STATES PATENT OFFICE.

AARON PARK, 01? OTTUMVVA, IOWA.

DUM PlNG-CAR.

SPECIFICATION forming part of Letters Patent No. 251,931, dated January 3, 1882. Application filed August 2; 1881. (No model.)

To all whom t'tmcy concern:

Be it known that I, AARON PARK, of Ottumwa, in the county of Wapello and State of Iowa, have invented a new and Improved Dumping-Oar, of which the following is a full, clear, and exact specification.

The object of my invention is to provide a dumping-car of simplified construction, and one which can be operated with greater ease than those in common use.

Myinvention consists in providing the frame of the car-truck with a longitudinal central shaft, and also, at or near its ends, with vertical plates, the upper edges'of which are made heart-shaped to form tracks upon which the car-box is adapted to move for dumping the load in either direction, the car-box being connected with the frame of the truck by a rod passing through curved slots in said vertical plates and operated by suitable levers, and locked in horizontal position by sliding catches entering detents formed in curved plates secured upon the truck-frame in proper position for that purpose.

In the accompanying drawings, Figure 1 is a plan View of my improved dumping-car. Fig. 2 is a longitudinal vertical section taken on the line m at of Fig. 1. Fig. 3 is an end elevation, showing the car-box or platform in horizontal position; and Fig. 4 is a similar view, ishoving the box in position for dumping the similar letters of reference indicate corresponding parts.

In lhe drawings, A represents the truckframe, which iscomposed of the side bars,a a, and end pieces, b b. Passing through theend pieces of the frame A is the central rod or shaft, B, to the ends of which may be attached the draw-heads of the car, as shown at E, and upon the outside of the said cross-pieces b are secured, by bolts or rivets, the vertical plates 0 C, and outside of these plates 0 G, and secured by the same rivets or bolts that secure the said plates, are the brackets or lower arms, 11 d, of the platforms D at the ends of the truckframe.

The plates 0 G are formed with the curved slots 0 c, and the upper edges of the plates are formed into the heart-shaped or doublecurved trucks, as shown at c 0, upon which the carbox G is supported, and upon which it is adapted to move upon the friction-wheels g g to either side of the truck for dumping the load.

The car-box G is held to the truck-frame in the different positions which the car-box assumes by the rod H, which passes through the central downward lugs or projections, h h, of the car-box and through the curved slots 0 c of the plates 0 (1- This rod H then passes through the levers L L at the ends of the truckframe, which levers are fulcrumed preferably upon the ends of the rod B, outside of the plates 0 O, as shown in the drawings, and for preventing too much strain upon the ends of the rods H, where they move in the curved slots, I connect the bottom of the car-box and the rod H in the center to the rod B by the link E and the depending perforated lugs h 71/ upon the bottom of the car-box. The link is held in place upon the rods by being placed between said lugs.

In order to retain the canbox in a horizontal position for holding the load, I secure upon the platforms D D the upwardly-curved plates f f, which are formed with the notches or other suitable detents, '5 i, into which the sliding catches I I, which move in the sleeves J J upon the levers L L, are adapted to drop when the car-box is brought to a horizontal position, as shown in Figs.2 and 3.. When the car-box is forced by the levers to the position shown in Fig. 4 for dumping the load the car-box is so nearly balanced upon the rod H that it requires but little power, applied either to the lower or upper edge of the box, 'to bring it to nearly a horizontal position upon the plates 0 0, when the remainder of the movement of the box can be easily performed with the levers LL.

I intend my invention for application to dumping-wagons as well as cars.

Having thus fully described my invention,

I claim as new and desire to secure by Letters Patent- A 1. The truck-frame provided with the vertical plates 0 (l, the upper edges of which are made heart-shaped, in combination with the link E, the rod H being placed in the said slots 0 c, as and for the purposes set forth.

4. The heart-shaped or double-curved plates 0 O,formed with the slots 0- c, in combination 15 with the car-box G, rod H, levers L L, catches I I, and the platesff, substantially as and for the purposes set forth.

AARON PARK. Witnesses:

W. S. UHRISTIE, DAVID CHAMBERS. 

